@
Mace
You are conflating the old Kaldorei culture with the current one. That the ancient Kaldorei were very adept at arcane magic and built their civilization off it is irrelevant to the current ones, because those ones expressedly rejected arcane. They built their civilization on an entirely different foundation and it's what BLizzard should have conveyed, instead of them trying - and probably failling - to harp the Nightbornes or Blood Elves, who are not Kaldore anymore, not for 10 000 years, since the race took a different turn.
What you're asking is for people who survived Climate Change of disastrous proportion and rejected the civilization which led to that (sdomething we humans seem unable to do at all) to actively embrace it again, because time passed.
But the Night Elves of today should be glorious with just their druidic and priestly elements. It is Blizzard fault for not conveying it properly since Warcraft III, when they were awesome. But adding a sudden arcanic worshipping excroissance to them won't serve them at all. The Highbornes and Demon Hunters must remain at the fringe of their culture, otherwise there is no point playing a Kaldorei. May as well pick up a sin'dorei or a shal'dorei.